How severe is CVE-2026-6325?

CVE-2026-6325 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-6325 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6325?

CVE-2026-6325 affects Wolfssl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6325?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-6325 have an EU (EUVD) identifier?

Yes. CVE-2026-6325 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39572.

When was CVE-2026-6325 published?

CVE-2026-6325 was published on 2026-06-25 and last updated on 2026-06-27.

CVE-2026-6325

CVE-2026-6325 is a high-severity vulnerability in Wolfssl with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 2.0
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39572
Weakness: CWE-787
Affected product: Wolfssl
Published: 2026-06-25
Last modified: 2026-06-27

Description

Out-of-bounds write in SetSuitesHashSigAlgo when processing an oversized signature algorithms list, allowing a write past the bounds of the destination buffer.

Frequently asked questions

What is CVE-2026-6325?: Out-of-bounds write in SetSuitesHashSigAlgo when processing an oversized signature algorithms list, allowing a write past the bounds of the destination buffer.
How severe is CVE-2026-6325?: CVE-2026-6325 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-6325 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6325?: CVE-2026-6325 affects Wolfssl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6325?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-6325 have an EU (EUVD) identifier?: Yes. CVE-2026-6325 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39572.
When was CVE-2026-6325 published?: CVE-2026-6325 was published on 2026-06-25 and last updated on 2026-06-27.

References

Affected products (1)

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

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